Abstract: In order to solve the question how to clean paraffin from using objects and the surface,the paraffin dissolution characteristics are studied by measuring weight loss rate,paraffin removal rate and solubility,the dissolution products are also discussed with infrared spectroscopy.The paraffin has the performance to resist acetone and the banana oil,and also has excellent anti acid alkali performance;All of the gasoline,rosin water and ether have better dissolution effect,their dissolving speed is very fast in the first hour and then it slows down,the solution reaches the saturation gradually after 9 hours;Their paraffin removal rate (mg/ml·min) are 1.0,0.9,2.9,and the solubility(g) are 11.8,9.4,6.0 respectively.The relationship between them doesn't show a positive correlation;According to infrared spectroscopy,all of the dissolution products are made of paraffin and the complex oxygenated compounds,the dissolution products of the rosin water and ether are mainly consisted of paraffin,while the dissolution product of gasoline is mainly consisted of oxygenated compounds;Also,the melting point of oxygenated compounds in dissolution product is lower than that in paraffin.

Key words: paraffin, paraffin remover, gasoline, rosin water, ether, infrared spectroscopy